549830219904 has 288 divisors, whose sum is σ = 1948779834300. Its totient is φ = 147853246464.

The previous prime is 549830219891. The next prime is 549830219947. The reversal of 549830219904 is 409912038945.

549830219904 is a `hidden beast` number, since 549 + 8 + 3 + 0 + 2 + 1 + 9 + 90 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 549152138304 + 678081600 = 741048^2 + 26040^2 .

It is a tau number, because it is divible by the number of its divisors (288).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 673132 + ... + 1246100.

Almost surely, 2^549830219904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 549830219904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (974389917150).

549830219904 is an abundant number, since it is smaller than the sum of its proper divisors (1398949614396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

549830219904 is a wasteful number, since it uses less digits than its factorization.

549830219904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573020 (or 572998 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 549830219904 in words is "five hundred forty-nine billion, eight hundred thirty million, two hundred nineteen thousand, nine hundred four".